Version 4 SHEET 1 1688 948 WIRE -432 -576 -464 -576 WIRE 784 -576 752 -576 WIRE -464 -544 -464 -576 WIRE 784 -544 784 -576 WIRE -304 -256 -352 -256 WIRE -208 -256 -304 -256 WIRE -112 -256 -208 -256 WIRE 144 -256 -112 -256 WIRE 224 -256 144 -256 WIRE 256 -256 224 -256 WIRE 368 -256 320 -256 WIRE 448 -256 368 -256 WIRE 480 -256 448 -256 WIRE 592 -256 560 -256 WIRE 656 -256 592 -256 WIRE 144 -240 144 -256 WIRE 448 -240 448 -256 WIRE 592 -240 592 -256 WIRE -304 -224 -304 -256 WIRE -208 -224 -208 -256 WIRE -112 -176 -112 -256 WIRE -80 -176 -112 -176 WIRE 16 -176 -16 -176 WIRE 224 -176 224 -256 WIRE 256 -176 224 -176 WIRE 368 -176 368 -256 WIRE 368 -176 336 -176 WIRE 592 -144 592 -176 WIRE -80 -128 -80 -160 WIRE 16 -128 16 -176 WIRE 144 -128 144 -160 WIRE 144 -128 16 -128 WIRE 224 -128 144 -128 WIRE 272 -128 224 -128 WIRE 368 -128 320 -128 WIRE 448 -128 448 -160 WIRE 448 -128 368 -128 WIRE 480 -128 448 -128 WIRE -304 -112 -304 -144 WIRE -208 -112 -208 -160 WIRE 224 -112 224 -128 WIRE 368 -112 368 -128 WIRE -304 -48 -352 -48 WIRE -224 -48 -304 -48 WIRE -80 -48 -224 -48 WIRE 80 -48 -16 -48 WIRE -304 -32 -304 -48 WIRE -144 -32 -176 -32 WIRE 224 -16 224 -48 WIRE 368 -16 368 -48 WIRE -144 0 -144 -32 WIRE 80 0 80 -48 WIRE 80 0 -144 0 WIRE -176 32 -176 16 WIRE -176 32 -224 32 WIRE -80 48 -80 -32 WIRE -304 64 -304 32 WIRE -224 64 -224 32 WIRE 16 112 -352 112 WIRE -304 192 -352 192 WIRE -256 192 -304 192 WIRE -112 192 -176 192 WIRE -80 192 -112 192 WIRE 16 192 16 112 WIRE 16 192 -16 192 WIRE -304 224 -304 192 WIRE -112 240 -112 192 WIRE -80 240 -112 240 WIRE 592 240 496 240 WIRE 640 240 592 240 WIRE -80 256 -128 256 WIRE 16 256 16 192 WIRE 16 256 -16 256 WIRE 80 256 80 0 WIRE 320 256 80 256 WIRE 432 272 384 272 WIRE 496 272 496 240 WIRE 592 272 592 240 WIRE 448 288 400 288 WIRE -304 320 -304 288 WIRE 320 320 256 320 WIRE -64 336 -64 304 WIRE 160 336 128 336 WIRE 256 336 256 320 WIRE 256 336 224 336 WIRE 432 336 432 272 WIRE 448 336 432 336 WIRE 592 368 592 336 WIRE 160 384 160 352 WIRE 496 384 496 352 WIRE 592 384 496 384 WIRE 656 384 592 384 WIRE 16 400 16 256 WIRE 496 416 496 384 WIRE 592 416 592 384 WIRE 432 432 432 336 WIRE 448 432 432 432 WIRE 80 448 80 256 WIRE 240 448 80 448 WIRE 400 448 400 288 WIRE 400 448 336 448 WIRE 400 480 400 448 WIRE 448 480 400 480 WIRE -304 496 -368 496 WIRE -256 496 -304 496 WIRE -128 496 -176 496 WIRE 144 496 -128 496 WIRE 240 496 208 496 WIRE 400 496 400 480 WIRE 16 528 16 464 WIRE 80 528 16 528 WIRE 144 528 80 528 WIRE 496 528 496 496 WIRE 592 528 592 480 WIRE 592 528 496 528 WIRE 640 528 592 528 WIRE -304 544 -304 496 WIRE -128 544 -128 496 WIRE 16 544 16 528 WIRE 80 544 80 528 WIRE 240 544 240 528 WIRE 144 560 144 544 WIRE 496 560 496 528 WIRE -304 640 -304 608 WIRE -128 640 -128 608 WIRE 16 640 16 608 WIRE 80 640 80 608 WIRE -464 704 -464 672 WIRE -432 704 -464 704 WIRE 784 704 784 672 WIRE 784 704 752 704 FLAG 656 384 Out IOPIN 656 384 In FLAG 592 -144 COM FLAG 656 -256 Ref IOPIN 656 -256 In FLAG -352 -48 Osc IOPIN -352 -48 In FLAG -128 640 COM FLAG -352 192 Vfb IOPIN -352 192 In FLAG -352 112 Err IOPIN -352 112 In FLAG 16 640 COM FLAG -368 496 Ifb IOPIN -368 496 In FLAG -304 640 COM FLAG -304 320 COM FLAG -304 64 COM FLAG -128 256 2v5 FLAG -352 -256 Vcc IOPIN -352 -256 In FLAG 368 -16 COM FLAG 640 240 Vcc IOPIN 640 240 In FLAG 640 528 Com IOPIN 640 528 In FLAG 592 368 COM FLAG 480 -128 2v5 FLAG 128 336 Ref FLAG 80 640 COM FLAG -208 -112 COM FLAG 224 -16 COM FLAG 256 336 fault FLAG -304 -112 COM FLAG 160 384 COM FLAG -64 336 COM FLAG -80 -128 COM FLAG 496 560 COM FLAG 144 560 COM FLAG 240 544 COM FLAG -224 64 COM FLAG -80 48 COM SYMBOL current -304 -224 R0 WINDOW 3 -40 -56 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 WINDOW 0 -40 0 Left 0 SYMATTR Value TBL(0 0 1 .2m) SYMATTR InstName I1 SYMBOL zener -224 -160 M180 WINDOW 0 32 64 Left 0 WINDOW 3 32 0 Left 0 SYMATTR InstName D1 SYMATTR Value 34V SYMBOL Digital\\schmtbuf -80 -240 R0 WINDOW 0 0 32 Left 0 WINDOW 3 0 -40 Left 0 WINDOW 38 48 32 Left 0 WINDOW 123 0 0 Left 0 SYMATTR InstName A1 SYMATTR Value Vt=8.2 Vh=0.3 SYMATTR Value2 Vhigh=2.5 Rout=1k SYMBOL res 128 -256 R0 SYMATTR InstName R1 SYMATTR Value 8e6 SYMBOL cap 208 -112 R0 WINDOW 0 32 8 Left 0 WINDOW 3 32 56 Left 0 SYMATTR InstName C1 SYMATTR Value 1p SYMBOL sw 352 -176 M270 WINDOW 0 40 88 VRight 0 WINDOW 3 40 32 VLeft 0 SYMATTR InstName S1 SYMATTR Value ref SYMBOL diode 320 -272 R90 WINDOW 0 -8 56 VRight 0 WINDOW 3 -8 0 VLeft 0 SYMATTR InstName D2 SYMATTR Value V65 SYMBOL cap 384 -112 M0 WINDOW 3 32 56 Left 0 WINDOW 39 -16 32 Right 0 WINDOW 0 32 8 Left 0 SYMATTR Value 1p SYMATTR SpiceLine Rpar=240 SYMATTR InstName C2 SYMBOL res 464 -144 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName R2 SYMATTR Value 240 SYMBOL res 576 -272 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R3 SYMATTR Value 280m SYMBOL cap 576 -176 M180 WINDOW 0 32 56 Left 0 WINDOW 3 32 8 Left 0 SYMATTR InstName C3 SYMATTR Value 10p SYMBOL cap -288 -32 M0 WINDOW 3 32 56 Left 0 WINDOW 0 32 8 Left 0 SYMATTR Value 5p SYMATTR InstName C4 SYMATTR SpiceLine Rpar=10meg SYMBOL cap -288 224 M0 WINDOW 0 32 8 Left 0 WINDOW 3 32 56 Left 0 SYMATTR InstName C5 SYMATTR Value 1p SYMBOL res -160 176 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R4 SYMATTR Value 165k SYMBOL cap -16 176 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 WINDOW 39 -40 32 VCenter 0 SYMATTR InstName C6 SYMATTR Value 1p SYMATTR SpiceLine Rpar=10G SYMBOL Digital\\or -48 208 R0 WINDOW 0 -160 96 Left 0 WINDOW 38 -112 96 Left 0 WINDOW 3 48 144 Right 0 WINDOW 123 48 176 Right 0 WINDOW 39 48 208 Right 0 SYMATTR InstName A4 SYMATTR SpiceModel OTA SYMATTR Value Vhigh=6 Vlow=0.7 Isrc=1m Isink=-6m SYMATTR Value2 Rclamp=1 g=5 Rout=25k Cout=5p SYMATTR SpiceLine powerup=!V(fault,Com) SYMBOL cap -288 544 M0 WINDOW 0 32 8 Left 0 WINDOW 3 32 56 Left 0 SYMATTR InstName C7 SYMATTR Value 5p SYMBOL res -160 480 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R5 SYMATTR Value 75k SYMBOL cap -144 544 R0 WINDOW 0 32 8 Left 0 WINDOW 3 32 56 Left 0 SYMATTR InstName C8 SYMATTR Value 1p SYMBOL diode 32 400 M0 WINDOW 3 40 56 Left 0 WINDOW 0 40 24 Left 0 SYMATTR Value 2R SYMATTR InstName D3 SYMBOL diode 32 544 M0 WINDOW 3 41 40 Left 0 WINDOW 0 41 8 Left 0 SYMATTR Value 1R SYMATTR InstName D4 SYMBOL cap 64 544 R0 WINDOW 0 32 8 Left 0 WINDOW 3 40 32 Left 0 WINDOW 39 32 56 Left 0 SYMATTR InstName C9 SYMATTR Value 0.1p SYMATTR SpiceLine Rpar=1e6 SYMBOL Digital\\schmtinv 160 272 R0 WINDOW 0 0 32 Left 0 WINDOW 3 32 88 Left 0 WINDOW 38 48 32 Left 0 WINDOW 123 31 111 Left 0 SYMATTR InstName A6 SYMATTR Value Vt=4.8 Vh=.1 SYMATTR Value2 trise=200n SYMBOL sw 496 368 M180 WINDOW 0 32 88 Left 0 WINDOW 3 32 32 Left 0 SYMATTR InstName S2 SYMATTR Value Ho SYMBOL sw 496 512 M180 WINDOW 0 32 88 Left 0 WINDOW 3 32 32 Left 0 SYMATTR InstName S3 SYMATTR Value Lo SYMBOL cap 576 272 R0 WINDOW 3 32 56 Left 0 WINDOW 0 32 8 Left 0 SYMATTR Value 20p SYMATTR InstName C10 SYMBOL cap 576 416 R0 WINDOW 0 32 8 Left 0 WINDOW 3 32 64 Left 0 SYMATTR InstName C11 SYMATTR Value 20p SYMBOL Digital\\diffschmitt 144 448 R0 WINDOW 3 17 105 Left 0 SYMATTR Value vt=1m vh=1m tripdt=3n trise=100n SYMATTR InstName A2 SYMBOL Digital\\srflop 288 400 R0 WINDOW 3 -181 14 Left 0 SYMATTR Value td=10n trise=200n SYMATTR InstName A3 SYMBOL Digital\\schmtbuf -80 -112 R0 WINDOW 0 26 81 Left 0 WINDOW 3 -120 35 Left 0 SYMATTR InstName A7 SYMATTR Value vt=1.75 vh=0.85 td=10n trise=100n SYMBOL g2 -224 48 R180 SYMATTR InstName G2 SYMATTR Value 8.3m SYMBOL Digital\\or 352 224 R0 WINDOW 3 -8 36 Left 0 SYMATTR InstName A5 SYMATTR Value trise=100n TEXT 224 624 Left 0 !.model 1R d(Vfwd=1 Ron=1) TEXT 224 592 Left 0 !.model 2R d(Vfwd=1.3 Ron=2e6) TEXT 112 48 Left 0 !.model 34V d(Ron=.5 Vfwd=.5 Vrev=34 Rrev=22) TEXT 112 80 Left 0 !.model ref sw(Vh=-11m Ilimit=100m) TEXT 112 176 Left 0 !.model Ho sw(Vt= .48 Vh=-.25 Ron=2 Roff=100k Vser=1.2) TEXT 112 208 Left 0 !.model Lo sw(Vt=-.52 Vh=-.25 Ron=6 Roff=300k) TEXT 112 16 Left 0 !.model V65 d(Vfwd=0.65) TEXT 144 -528 Center 0 ;>> UC3843A <<\nLTspice A-Device Behavioral Model\nCopyright 2004 by analog@ieee.org\nModified by Hendrik Jan Zwerver to standard A devices TEXT -424 -448 Left 0 ;NOTES:\nUC3842A: for A1 Vt=13 Vh=3.0 and bypass A3 (delete)\nUC3843A: for A1 Vt=8.2 Vh=0.3 and bypass A3 (delete)\nUC3844A: for A1 Vt=13 Vh=3.0; for A3 cycles=2\nUC3845A: for A1 Vt=8.2 Vh=0.3; for A3 cycles=2 RECTANGLE Normal 768 688 -448 -560